168 PACIFIC COAST AVIFAUNA No. 11 
25), San Bernardino Mountains (J. Grinnell, Univ. Calif. Publ. Zool., v, 
1908, p. 127), and San Jacinto Mountains (Anthony, Nidiologist, 11, 1895, p. 16). 
Winters abundantly in the San Diegan district, and in the interior valleys west 
of the Sierras north to the head of the Sacramento Valley; also in the valley of 
the Colorado River. Still more abundant and widespread during spring migra- 
tion. Many of the ruby-crowned kinglets wintering in the west-central part of 
the state are not typical of this form, being intermediate towards R. c. grinnelli 
and hence very similar to, and in some eases indistinguishable from, R. c. calen- 
dula, of eastern North America. 
526 (749a) Regulus calendula grinnelli Palmer 
Sitka KINGLET 
Status—Fairly common midwinter visitant south through the humid coast 
belt to Monterey (J. Grinnell, Pac. Coast Avif. no. 3, 1902, p. 72): Santa Cruz 
Mountains (J. Grinnell, Condor, m1, 1901, p. 48; M. P. Anderson and Jenkins, 
Condor, v, 1903, p. 155); San Geronimo, Marin County (several specimens in 
Mailliard coll.) ; Haywards, Alameda County (Mailliard coll.) ; Berkeley (J. 
Grinnell, Condor, xvi, 1914, p. 39). Casual south to Redlands, San Bernardino 
County (Bishop, Condor, vu, 1905, p. 143). 
527 (751la) | Polioptila caerulea obscura Ridgway 
WESTERN GNATCATCHER 
Synonyms—Polioptila caerulea; Culicwora caerulea; Blue-gray Flycatcher ; 
Blue-gray Gnateatcher. 
Status—Common resident in Upper and Lower Sonoran zones in the San 
Diegan district; northward as a summer visitant locally along the western foot- 
hills of the Sierra Nevada to Baird, Shasta County (Townsend, Proc. U. S. Nat. 
Mus., x, 1887, p. 230), casually to Yreka, Siskiyou County (J. G. Cooper, Orn. 
Calif., 1, 1870, p. 35); also north through the inner coast ranges to Ala- 
meda County and casually to San Mateo County (Pemberton, Con- 
dor, x, 1908, p. 239), and along the inner coast ranges north of San Fran- 
cisco Bay, as at Lakeport (C. Chamberlin, Condor, m, 1901, p. 33), Mount St. 
Helena, Mount Sanhedrin, Covelo, ete. (Mus. Vert. Zool.) ; also along the desert 
ranges southeast of the southern Sierras (A. K. Fisher, N. Amer. Fauna no. 7, 
1893, p. 143). Found in winter generally in the lower parts of the southeastern 
section of the state, occurring across the deserts to the Colorado River. Late 
summer visitant to San Geronimo, Marin County (J. and J. W. Maillard, MS) ; 
occurs through the winter as far north as Paicines, San Benito County (Mail- 
hard coll.). Casual on Santa Cruz Island (Linton, Condor, x, 1908, p. 129), and 
on Santa Catalina Island (Mus. Vert. Zool.). 
528 (752) Polioptila plumbea (Baird) 
PLUMBEOUS GNATCATCHER 
Synonym—Polioptila melanura, part. 
Status—Common resident of the Lower Sonoran zone on the Colorado Des- 
